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Retest reliability of individual alpha ERD topography assessed by human electroencephalography


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dc.creator Vázquez Marrufo, Manuel es
dc.creator Galvao Carmona, Alejandro es
dc.creator Benítez Lugo, Mª Luisa es
dc.creator Ruiz Peña, Juan L. es
dc.creator Borges Guerra, Mónica es
dc.creator Izquierdo Ayuso, Guillermo es 2017-11-30T19:16:05Z 2017-11-30T19:16:05Z 2017-10-31
dc.identifier.citation Vázquez Marrufo, M., Galvao Carmona, A., Benítez Lugo, M.L., Ruiz Peña, J.L., Borges Guerra, M. y Izquierdo Ayuso, G. (2017). Retest reliability of individual alpha ERD topography assessed by human electroencephalography. Plos One, 12 (10)
dc.identifier.issn 1932-6203 es
dc.description.abstract Background Despite the immense literature related to diverse human electroencephalographic (EEG) parameters, very few studies have focused on the reliability of these measures. Some of the most studied components (i.e., P3 or MMN) have received more attention regarding the stability of their main parameters, such as latency, amplitude or topography. However, spectral modulations have not been as extensively evaluated considering that different analysis methods are available. The main aim of the present study is to assess the reliability of the latency, amplitude and topography of event-related desynchronization (ERD) for the alpha band (10–14 Hz) observed in a cognitive task (visual oddball). Topography reliability was analysed at different levels (for the group, within-subjects individually and between-subjects individually). Results The latency for alpha ERD showed stable behaviour between two sessions, and the amplitude exhibited an increment (more negative) in the second session. Alpha ERD topography exhibited a high correlation score between sessions at the group level (r = 0.903, p<0.001). The mean value for within-subject correlations was 0.750 (with a range from 0.391 to 0.954). Regarding between-subject topography comparisons, some subjects showed a highly specific topography, whereas other subjects showed topographies that were more similar to those of other subjects. Conclusion ERD was mainly stable between the two sessions with the exception of amplitude, which exhibited an increment in the second session. Topography exhibits excellent reliability at the group level; however, it exhibits highly heterogeneous behaviour at the individual level. Considering that the P3 was previously evaluated for this group of subjects, a direct comparison of the correlation scores was possible, and it showed that the ERD component is less reliable in individual topography than in the ERP component (P3). es
dc.description.sponsorship Ministerio de Economía y Competitividad (España) PSI2016-78133-P es
dc.description.sponsorship Asociación Sanitaria Virgen Macarena es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Public Library of Science es
dc.relation.ispartof Plos One, 12 (10)
dc.rights.uri *
dc.subject Event-related desynchronization es
dc.subject ERD es
dc.subject Electroencephalographic activity es
dc.subject EEG es
dc.title Retest reliability of individual alpha ERD topography assessed by human electroencephalography es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/publishedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Psicología Experimental es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Fisioterapia es
dc.relation.projectID PSI2016-78133-P es
dc.relation.publisherversion es
dc.identifier.doi 10.1371/journal.pone.0187244 es
idus.format.extent 15 p. es
dc.journaltitle Plos One es
dc.publication.volumen 12 es
dc.publication.issue 10 es
dc.contributor.funder Ministerio de Economía y Competitividad (MINECO). España
dc.contributor.funder Asociación Sanitaria Virgen Macarena
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